slaaja / gr-gps Goto Github PK

Dear Slaaja,

thanks for this great GPS-Blocks for GNU-Radio!!

But I´ve one big problem. Your blocks are working fine in testbench, even with much simulated noise. But in real operation i wasn´t able to track satellites for weeks. I´m using an active GPS-antenna (outdoors) with overall gain 35 dBi and a powerful FMCOMMS-SDR from analog devices. Sometimes acquisition succeeds, but tracking never works, the PLL is going crazy.

To be on safe side, have your blocks ever worked in real operation? I think you use a Blade-RF, but my FMCOMMS should also be enough powerful.

Hoping for help, Heuber (mechatronics student).

Hi I have an RTL sdr v3 dongle and an active gps patch antenna. My question is how should I go about using the dongle with this gr gps gnu radio module.

Thanks
Nalin saxena

i want to install your gr-gps on gnuradio3.7.1 it return below errors in make............
in os debian jessie 8

Scanning dependencies of target gnuradio-gps
[ 6%] Building CXX object lib/CMakeFiles/gnuradio-gps.dir/gps_despread_impl.cc.o
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc: In function ‘void* gr::gps::search_worker(void*)’:
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc:108:26: error: ‘printf’ was not declared in this scope
printf("Searching...\n");
^
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc: In member function ‘virtual void gr::gps::gps_despread_impl::set_code(int)’:
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc:323:36: error: ‘printf’ was not declared in this scope
printf("## Code set to: %d\n", c);
^
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc:327:51: error: ‘printf’ was not declared in this scope
printf("ERROR: Unknown code selection: %d\n", c);
^
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc: In member function ‘void gr::gps::gps_despread_impl::update_pll(float)’:
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc:407:52: error: ‘printf’ was not declared in this scope
printf("# Frequency correction PLL unlocked.\n");
^
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc: In member function ‘virtual int gr::gps::gps_despread_impl::general_work(int, gr_vector_int&, gr_vector_const_void_star&, gr_vector_void_star&)’:
/home/admin/Documents/gr-gps/lib/gps_despread_impl.cc:676:38: error: ‘printf’ was not declared in this scope
printf("%d ", search_acq_counter);
^
lib/CMakeFiles/gnuradio-gps.dir/build.make:54: recipe for target 'lib/CMakeFiles/gnuradio-gps.dir/gps_despread_impl.cc.o' failed
make[2]: *** [lib/CMakeFiles/gnuradio-gps.dir/gps_despread_impl.cc.o] Error 1
CMakeFiles/Makefile2:123: recipe for target 'lib/CMakeFiles/gnuradio-gps.dir/all' failed
make[1]: *** [lib/CMakeFiles/gnuradio-gps.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

@slaaja
http://koti.kapsi.fi/~smau/bladerf/20140828_001.jpg
http://koti.kapsi.fi/~smau/bladerf/20141015_001.mp4

these links are broken can you update them thanks

Can your module support higher version? At least I had an error with gnuradio above 3.8.

This problem occurs when I use these modules on a GRC flow diagram:

self.gps_gps_codegen_0 = gps.gps_codegen(1023e3*4, 5, 1)

AttributeError: module 'gps' has no attribute 'gps_codegen'

i want to find more documentation about your project doxygen file is little.
my question output the format is NMEA for gr-gps example?

these video is broken how can i downloaded them?
http://koti.kapsi.fi/~smau/bladerf/20140828_001.jpg
http://koti.kapsi.fi/~smau/bladerf/20141015_001.mp4

any document or guidance for your project thanks
best regards stackprogramer